Seesaw



Dec. 19, 1933. c. H. sHAFFER SEESAW 'Filed July 29, 1932 Patented Dec.Y19, 1933 PATENT OFFICE SEESAW Charles H. Shaffer, Carlisle, Pa.,assignor to (Mrs.) F. Lourene Woods, Carlisle, Pa.

Application July 29, 1932. Serial No. 626,004

3 Claims.

This invention relates to new and useful improvements in seesaws, andhas among its several objects to provide an attractive, efticient and usafe seesaw in whichl the tilter board is nor- I mally spring held in asubstantially horizontal position, and in which the yieldable partsV areproperly housed to prevent the parts from being contacted by childrenwhen operating the seesaw.

With these and other objects in view which will more fully appear, thenature of the invention will be more clearly understood by following thedescription, the appended claims, and the several views illustrated inthe accompanying drawing.

In the drawing:-

Figure 1 is a perspective view of a seesaw embodying my invention,

Figure 2 is a vertical cross section thereof,

Figure 3 is a bottom plan view of the tilter board, a section of thehousing being removed,

and l Figure 4 is a longitudinal section showing the board in a tiltedposition.

Like reference numerals designate corresponding parts throughout theseveral figures of the drawing.

Referring to the drawing, my invention includes a support or base A, anda tilter board B disposed above the base and provided with seats 5, 5 atits ends and hand holds 6, 6 in advance of said seats. The board ispivoted to the base A through the medium of two depending arms 7, 7which are rigidly secured at their upper ends centrally to the sides ofthe board and which are pivotally connected to bearing ears 8, 8 xed tothe base.

Fixedly secured to the base and located centrally between the arms 7, '7is a post or standard 9 the upper end terminating below and in spacedrelation to the board. A cross arm 10 is rigidly secured to the upperend of the post. A plurality of coil springs 11 are disposed on one sideof the cross arm and a corresponding `number of similar springs 12 aredisposed on the opposite side of the cross arm. These springs extendlongitudinally of the board and the springs 11 as well as thev springs12 are arranged in spaced parallel relation, the inner ends of thesprings being removably connected to the cross arm and the outer endsbeing removably connected to anchor plates 13, 13 which arerespectivelyattached to the under face of the board adjacent the endsthereof.

(r A housing C which is formed of two sections 14, 14 is attached to theunder face of the board for not only concealing the cross arm, thesprings, and the anchor plates but also for guarding said parts frombeing contacted by the children when operating the board. The 80 housingis provided with a longitudinal opening 15 for receiving the upper endof the post and to permit pivotal movement of the board withoutcontacting the post.

From the foregoing, it will be apparent that I have provided anattractive, eilicient and safe seesaw; that the springs on both sides oftheV post are equally expanded when the teeter board is moved to aninclination; that the springs cooperate with the board to normallyretain the same in a substantially horizontal position; that byemploying a plurality of springs on each side of the post, the loss of asingle spring due to accident or other cause will not materially effectthe proper operation of the board, and that the yieldable parts arefully housed and consequently all danger to children is eliminated.

It is of course to be understood that the details of structure andarrangements of parts may be variously changed and modied without vdeparting from the spirit and scope of my invention.

I claim:-

1. In a seesaW, the combination with a base, of a tilter board disposedabove the base, dev pending arms rigidly connected to the boardcentrally on opposite sides thereof and pivotally connected at theirlower ends to the base,

a post rigidly connected to the base and located centrally between thedepending arms, a, cross head fixed to the upper end of the post, and

, springs extending longitudinally of the base on opposite sides of thepost and having their inner ends connected to the cross head and theirouter ends connected to the board for normally retaining the board in asubstantially horizontal position.

2. In a seesaw, the combination with a base, of a tilter board pivotedintermediate its ends thereto, a post rigidly connected to the base anddisposed centrally between the ends of the board, a cross head xed tothe upper end of the post, anchor plates secured to the under face ofthe board adjacent the ends thereof, and springs extendinglongitudinally of the base on opposite sides of the post and havingtheir inner ends connected to the cross head and their outer endsconnected to the anchor plates for normally retaining the board in aSubstantially horizontal position.

3. In a seesaw, the combination with a base, of a, tilter board pivotedintermediate its ends thereto, a post rigidly connected to the base anddisposed centrally between the ends of the board,

5 springs extending longitudinally of the base on opposite sides of thepost and having their inner ends connected to the post and their

